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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Gibsonville, Town of

Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
20150.230 ppb101ND - 2.30 ppb
20160.325 ppb81ND - 2.60 ppb
20170.850 ppb83ND - 2.50 ppb
20181.53 ppb85ND - 3.00 ppb
20190.513 ppb82ND - 2.10 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-1992190163003ND
2014-02-1992190163002ND
2014-05-2192202262004DISND
2014-05-2192202262001DISND
2014-08-1492213542002TTHND
2014-08-1492213542004TTHND
2014-11-1292225262001TTHND
2014-11-1292225262002TTHND
2015-02-11ND
2015-02-11ND
2015-05-13ND
2015-05-13ND
2015-08-12ND
2015-08-122.30 ppb
2015-11-11ND
2015-11-11ND
2015-11-11ND
2015-11-11ND
2016-02-1092286016007TTH-2ND
2016-02-1092286016009TTH-22.60 ppb
2016-05-1892298090001TTH-2ND
2016-05-1892298090002TTH-2ND
2016-08-1792309173007TTHND
2016-08-1792309173006TTHND
2016-11-0992319067003TTHND
2016-11-0992319067002TTHND
2017-02-0892329204001TTHND
2017-02-0892329204002TTHND
2017-05-1792340918001TTH2.50 ppb
2017-05-1792340918002TTH2.20 ppb
2017-08-1692351729001TTHND
2017-08-1692351729002TTHND
2017-11-1592363488001TTH2.10 ppb
2017-11-1592363488002TTHND
2018-02-2192374289003TTH 2.80 ppb
2018-02-2192374289002TTH 3.00 ppb
2018-05-2392385794002TTH 2.20 ppb
2018-05-2392385794003TTH ND
2018-08-1592395854001TTH 2.10 ppb
2018-08-1592395854002TTH 2.10 ppb
2018-11-1492407304002TTH ND
2018-11-1492407304003TTH ND
2019-02-2092418437001_3770ND
2019-02-2092418437002_3770ND
2019-05-1592429315001_37702.10 ppb
2019-05-1592429315002_37702.00 ppb
2019-08-2192442289004_3770ND
2019-08-2192442289005_3770ND
2019-11-2092454563003_3770ND
2019-11-2092454563002_3770ND